The test campaign using the large antenna
at Chilbolton Observatory to analyse the
navigation signals transmitted by Giove-
A, has been successfully completed.
Following its launch in December 2005,
Giove-A began transmitting navigation
signals. Analysis of these signals has
involved several facilities, at ESA’s
European Space Research and Technology
Centre, in the Netherlands, the ESA
ground station at Redu, in Belgium, and
the Rutherford Appleton Laboratory
Chilbolton Observatory in the UK.
Analysis of the signals has allowed some
adjustments to be made, re-programming
the spacecraft’s navigation signal
generation unit to compensate for changes
to the signals introduced by the amplifier
that boosts them for transmission to
Earth and by a filter that protects adjacent
frequency bands from interference. |